The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Receiver Carrier-to-Interference Ratio Distribution Characteristics under the Influence of an Intra-Cell Interferer

셀 내 간섭원에 의한 수신기의 신호 대 간섭비 분포 특성

  • Kim, Se-Jin (Department of Electronic Engineering, Sogang University) ;
  • Moon, Won-Joo (Department of Electronic Engineering, Sogang University) ;
  • Sung, Won-Jin (Department of Electronic Engineering, Sogang University)
  • Published : 2007.09.30
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Abstract

To analyze the performance of mobile communication systems, the exact information of the carrier-to-interference ratio is important. Under the presence of an interferer in a cell, the carrier-to-interference ratio of the receiver is determined by the ratio between the informer-receiver distance$(d_0)$ and the receiver-interferer distance$(d_1)$. In this paper, we derive the carrier-to-interference distribution based on $d_0/d_1$ values using the geometric relation among the informer, interferer and receiver, and confirm its exactness using the simulation result. We also apply the derivation result to a system with the adjacent channel interference, and analyze the outage probability.

이동 통신 시스템의 성능 분석을 위해서는 정확한 신호 대 간섭비(Carrier-to-Interference Ratio: C/I)에 대한 정보가 중요하다. 셀 내에 간섭원(interferer)이 존재하는 경우, 수신기의 신호 대 간섭 비는 수신기와 정보원의 거리$(d_0)$와 수신기와 간섭원의 거리$(d_1)$의 비에 의해 결정된다. 본 논문에서는 정보원, 간섭원 및 수신기의 지정학적 관계를 이용해서 $d_0/d_1$의 값에 따른 신호 대 간섭비의 분포를 유도하고, 이를 실험 결과와 비교 및 검증한다. 또한, 제시된 모델을 활용하여 인접 채널 간섭이 존재하는 상황에 적용시, 간섭 영향에 따른 outage 확률을 분석한다.

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References

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